Recrystallization texture and shear band formation in bending

Hiroshi Kaneko, Tatsuya Morikawa, Masaki Tanaka, Hirofumi Inoue, Kenji Higashida

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The influence of texture on the shear bands and workability in bending was examined by using an age-hardened polycrystalline high concentration of Ni-Si copper alloys with various recrystallization textures. Samples with dominant the Cube orientation of {001}〈100〉, the RD-rotated Cube orientation of {012}〈100〉, the BR orientation of {362}〈853〉, and the R orientation of {231}〈346〉 were employed. The formation of shear bands and the bending workability depended on the texture in the W-shape bending test, in which the bending direction was RD. The sample with a strongly developed Cube orientation showed the best bending workability. In comparison, the samples with the developed BR orientation and random orientation showed poor bending workability. The shape of the cracks generated by bending was linear, and these cracks developed in the shear bands, which were inclined at 35-40° from the surface. To elucidate the mechanism behind shear band formation, inhomogeneous deformations were investigated using the FE-SEM/EBSD method. The dependence on the crystallographic orientations was discussed using the full constraint Taylor model premising both the plane strain compression and the shear strain modes.

    Original languageEnglish
    Pages (from-to)218-224
    Number of pages7
    JournalMaterials Transactions
    Volume58
    Issue number2
    DOIs
    Publication statusPublished - 2017

    All Science Journal Classification (ASJC) codes

    • Materials Science(all)
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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